You undergo DNA testing for important reasons. Would you choose a test that is low quality because it is inexpensive?
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100% Accurate DNA Testing All Tests Run Twice
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The paternity testing process explained
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ABO Blood Types can be used to calculate paternity?
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Eye colour can be used to determine paternity?
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Consent is require to test a person's DNA sample?
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DNA can be used to help solve crimes?
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Relationship Test

DNA analysis can be used to test relationships between people. A relationship test can give answers whether two (or more) individuals are related and even tell how many generations ago two family branches had split.

DDC offers several DNA tests which can be used as relationship tests and help people in establishing relationships or tracing their genetic origin:

"Peace of Mind" Paternity Test - Quickly and easily determine the paternity of a child.
Siblingship Analysis - For two individuals who want to determine if they share the same father and mother.
Grand-Parentage Test - Used to establish a relationship between an individual and an alleged grandparent.
Twin Zygosity Testing - Used to help determine if twins are either fraternal or identical.
Ethnicity Test - Determines what genetic percentage of European, East Asian, and African a person has.
1st Cousin Analysis - Designed to measure the probabilities of a relationship between the two alleged 1st cousins.

Navigate here for more information on any of these Relationship Tests.

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Relationship Test